@malexmoore Similar and more commonly associated with US Police forces DUI tests. This video by @EssexPoliceUK and @EPRoadsPolicing explains the test. youtu.be/tf0yQJxP5k8 Post navigation @malexmoore A test where the suspect is observed carrying out a number of given tests. The results of how the performed can help show if they are impaired by drink/drugs. The tests include walking a line toe to toe, standing, feet together, eyes closed and asked to say when 30 seconds is up @malexmoore Yes Field Impairment Test, FIT. Actual full name is Drugs recognition Field Impairment Test or DRFIT.